Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 5 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 05/03/2021   17:55:18   (   0.04,-127.78) (  -0.44,-125.60)  248.41                80
 05/05/2021   06:14:19   (  -0.03,-127.78) (  -0.55,-130.20)  275.78                80
 05/06/2021   05:51:00   (  -0.03,-127.82) (   0.56,-125.21)  297.28                80
 05/07/2021   18:09:51   (   0.03,-127.93) (   0.43,-129.78)  209.83                80
 05/08/2021   17:51:51   (   0.03,-127.97) (  -0.68,-124.78)  363.87                80
 05/10/2021   06:10:53   (  -0.03,-127.98) (  -0.32,-129.39)  160.04                80
 05/11/2021   05:47:33   (  -0.03,-128.01) (   0.79,-124.39)  412.60                80
 05/12/2021   18:06:25   (   0.03,-128.11) (   0.19,-128.96)   96.05                80
 05/13/2021   17:48:25   (   0.03,-128.15) (  -0.93,-123.97)  476.93                80
 05/15/2021   06:07:25   (  -0.02,-128.14) (  -0.14,-128.56)   47.67                80